virtualDUP+capture+xvid+crash

[sabo0403]

hi,

i capture my hi8-video via usb-video-adapter. i deploy virtualDUP and want code my video with xvid+lame codec's.
i crashes always. i took differece versions of xvid as well the same..
i goggeled and didn't find any solution for me. i am resignated. please help

P.S.: if i take virtualVCR. it works.

[jagabo]

i capture my hi8-video via usb-video-adapter. i deploy virtualDUP and want code my video with xvid+lame codec's.

What capture device do you have? In my experience VirtualDub will not capture from USB capture devices that have hardware MPEG encoders. And when it does work it gets only the video.

[sabo0403]

i capture with EasyCAP. It is a USB AV Adapter. It works. But i can not hear the sound during capturing. But if i play the captured video. The sound is existing. That is no problem.

The problem occurs if i will code with XVID. It crashes. I find out via goggle that xvid crashes. But why not with virtualVCR ?

[sabo0403]

no ideas

[jagabo]

You could try using Divx instead of Xvid.

What kind of settings are you using in Xvid? Single Pass, Target Quantizer (or Target Bitrate), Quality Preset -- Real-time?

[sabo0403]

i tried divx. it works. but i want to try xvid-codec to whether it is better or no. i must add. i am no proffessional for codecs. therefore i cannot give you any information about setting. because i didn't set them. i appreciate it if you give me working settings of xvid 1.2.2

[jagabo]

Xvid at its fastest settings isn't as fast as Divx at its fastest settings so it may not work. But try this:

From the main Xvid config dialog press the Load Defaults button in the lower left. Just above that button is the Quality Preset. Set that to Real-time. Near the top is the Target Quantizer button. To its right is the quantizer value. The default is 4 which is so-so quality. Smaller values give higher quality and larger file sizes, higher values give lower quality and smaller file sizes. If you can capture with these settings you can start looking at other settings...

[sabo0403]

i did so as you recommended. it crashed again with crahsinfo.

crashinfo.txt

[jagabo]

Does Xvid work at all on your computer? Try opening one of the files you captured with Divx then recompress it with Xvid. Does it crash?

[sabo0403]

done, as you recommended and it doesn't crash.
i captured my video with divx+lame and i recompressed it with xvid+lame and it works )

what das it mean ?

[jagabo]

What resolution are you capturing? I wouldn't go less than mod4 (an integer multiple of 4) in both dimensions. Stick with Mod16 if you can. For example 704x480 is good, 704x479 is bad.

What colorspace? RGB, YUY2, YV12, etc. YUY2 or YV12 should work best.

Maybe the particular vesion of Xvid you have is bad? Try a different version. Make sure you have the right one for your OS. Ie, use a 32 bit version for 32 bit Windows, 64 bit version for 64 bit Windows.

[sabo0403]

Resolution 720x576. i think it is mod16.
colospace 24-bit RGB

i installed this version out of k-lite mega codec pack

"http://www.codecguide.com/download_k-lite_codec_pack_mega.htm"

and itried this version to

"http://www.xvid.org/Downloads.43.0.html"

[jagabo]

720x576 is a good resolution, mod16. 24 bit RGB isn't the best. If you can capture in YUY2 because that is the closest match to an analog video source.

I forgot to mention that you may also need to enable the interlaced option in the Xvid config. But that's not the cause of your crashes. Interlaced Xvid encoding is even slower than progressive encoding so it may cause further problems.

KLite is a mishmash of parts of dozens of different individual codecs. Many of the components are not compatible with each other and it doesn't uninstall cleanly. It can cause many problems. I recommend you uninstall it and install only the individual codecs you need -- downloaded from trusted sources (so you don't get a trojan). If you use players like MPCHC, KMPlayer, and VLC you don't need to install lots of codecs. Those players include built-in decoders for most types of audio and video. If you need a "pack" use ffdshow. It is one big codec that encodes and decodes many different formats (each individual codec can be turned on/off via it's config dialog). It installs and uninstalls cleanly.

The version of Xvid you downloaded from xvid.org should be fine. But you might try Koepi's VAQ build instead. http://www.koepi.info/

Are you running XP or Vista? 32 bit or 64 bit?

[sabo0403]

My OS 32-Bit XP

i deinstalled k-lite and installed divx and lame with following versions separately.

xvid 1.2.1 (not VAQ Build ?? what is the difference ?)
divx 6.8.5
lame 3.98.2

my further settings are

xvid: interlaced encoding, real-time, resolution: 720x576xYUY2

divx: resolution: 720x576x24-bit RGB

lame: 44100Hz, 128kbps, CBR, Stereo, 16KB/s

Just now i can capture with both codec but the sound is asynchron. i had this problem sometime before. but i don't know how i get it to work. i think with CBR. but i set CBR ?

any idea ??

[jagabo]

Well, it sounds like there is some progress. Try capturing uncompressed audio. See if that is in sync.

[sabo0403]

OK, i tried it. Bouth (xvid, divx) uncompressed sound. it works. But i must add something. the sound compressed with lame is not only asynchron. it is bad and longer than video too. it is a dull sound. i don't know whether this word is a right decribing.

i send you a captured file as attaching

capture_test_xvid_lame1.avi

[sabo0403]

Here, another captured file demonstrated longer sound



capture_test_xvid_lame.avi

[jagabo]

There is a miscommunication between VirtualDub and Lame about the sample rate of your audio. Set your capture device to 44100 Hz or 48000 Hz sampling. Then choose the correct sample rate in Lame.

[sabo0403]

Sorry, i can you give please some hints.
Where is capture device ? in vd or in "system control/system/hardware/device manager/syntek STK115" ?
In STK115-properties i can not set anything. In vd i can not find any point where i can set sample rate. confusion. i found only vd:menue audio/compression/Lame MP3 and set this to 44100Hz, 128kbps,CBR,Streo, 16KB/s

[sabo0403]

Here my screenshoot

[sabo0403]

i think, it works

my settings:

xvid: interlaced encoding, real-time, resolution: 720x576xYUY2
divx: resolution: 720x576xYUY2

raw audio format: PCM: 44100Hz,stereo, 16-bit (sound is OK)
lame: 44100Hz, 128kbps, CBR, Stereo, 16KB/s

@jagabo: thank you very much for your helping
the sound was ok again after i changed "raw audio format"
can you please acknowledge whether it was proper changing at the right point.
i want unterstand it

[jagabo]

the sound was ok again after i changed "raw audio format"
can you please acknowledge whether it was proper changing at the right point.
i want unterstand it

Yes, that is the correct setting to change. Use 48000 if you want compatibility with DVD.